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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Unnes Science Education Journal Journal of Innovative Science Education
Wardana, Irfan Ihza
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Visualizing Research Trends on the Impact of STEM-Integrated Project-Based Learning Model on 21st-Century Skills Using VOSviewer and Harzing's Publish or Perish: A Systematic Literature Review Wardana, Irfan Ihza; Sukaesih, Sri; Dewi, Novi Ratna
Journal of Innovative Science Education Vol. 13 No. 3 (2024): December 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jise.v13i3.16998

Abstract

The 21st-century skills are essential component of curriculum frequently implemented in schools and universities to equip students for competition in the labor market. Integrating STEM (Science, Technology, Engineering, and Mathematics) into Project-Based Learning (PjBL) promotes active student engagement and interdisciplinary problem-solving to tackle complex issues. This article aims to provide research recommendations on how the STEM-integrated PjBL model affects students' 21st-century skills and to provide information on rarely-researched trends in this field. A Systematic Literature Review was conducted following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, utilizing Harzing's Publish or Perish software, VOSviewer, and Google Scholar databases, focusing on thirty references published between 2019 and 2023. The findings indicated that the STEM-based PjBL approach significantly enhances students' 21st-century skills, including critical thinking, creativity, collaboration, communication, conceptual understanding, and problem-solving abilities, thereby preparing them to navigate complex global challenges. Effective implementation requires interdisciplinary teacher collaboration, technology integration, and supportive learning environments. However, the analysis highlights that the integration of STEM and PjBL has not been extensively associated with collaboration and communication skills, presenting a valuable opportunity for future research in this area.
Ethnoscience E-Supplement for Critical Thinking and Cognitive Outcomes Wardana, Irfan Ihza; Saptono, Sigit; Dewi, Novi Ratna
Unnes Science Education Journal Vol. 14 No. 2 (2025): August 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/usej.v14i2.28898

Abstract

Most education systems have not fully supported the development of students’ critical thinking skills, partly due to the limitations of teaching materials that only refer to textbooks. Complex material such as Earth Structure requires a more contextual and meaningful approach. One strategy that can be used is the development of ethnoscience-laden e-supplementary teaching materials that link the material with local wisdom. This study aims to analyze the validity, practicality, effectiveness, and characteristics of Ethnoscience-Laden E-Supplement Teaching Materials to improve students’ critical thinking skills and cognitive learning outcomes. The research used the ADDIE development model with instruments in the form of questionnaires, validation sheets, pretests, and posttests. The results showed that the E-Supplement was feasible to use in learning, with material validity of 94% and media of 95% (very valid category). The E-Supplement was also effective in improving critical thinking skills (average 69%, high category) and cognitive learning outcomes (N-Gain 61%, moderately effective category). Practicality was rated very well by teachers (97.67%) and students (85%). The characteristics of the E-Supplement are contextual, practical, and easy to use, and they raise the ethnoscience of the Sikidang Crater legend to increase student involvement and understanding in learning.
Pemanfaatan Mikro Organisme Lokal (MOL) pada Pembuatan Pupuk Organik Cair (POC) dengan Memanfaatkan Limbah Sayuran Wardana, Irfan Ihza; Purwaningsih, Indri; Dewi, Pramesti; Mustikaningtyas, Dewi
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.6506

Abstract

This study aims to analyse the Nitrogen and pH levels of liquid organic fertiliser (LOF) made using microlocal organisms (LMO) based on vegetable waste. The method used was an experimental method through a fermentation process carried out at the Center for Standardisation and Industrial Pollution Prevention Services (BBSPJPPI). The results showed that the LOF produced had a Nitrogen content of 0.03% and a pH of 3, which did not meet the quality standards of liquid organic fertiliser in Indonesia, namely Nitrogen content of 2-6% and a neutral to slightly acidic pH (5-7). The low Nitrogen content is due to the Nitrogen-poor composition of the vegetable waste, while the overly acidic pH is due to the prolonged fermentation time, which triggers the formation of organic acid compounds. To improve the quality of LOF, optimisation is needed in the selection of raw materials, fermentation ratio, and control of fermentation parameters such as time and temperature. This research provides recommendations for the development of higher-quality LOFs that comply with national standards.
Co-Authors Dewi Mustikaningtyas Dewi, Novi Ratna Pramesti Dewi Purwaningsih, Indri Sigit Saptono Sri Sukaesih